We analyse questions of arbitrage in financial markets in which asset prices change in time as stationary stochastic processes. The main focus of the paper is on a model where the price vectors are independent and identically distributed. In the framework of this model, we find conditions that...

We revisit the question whether commodities should be included in investors' portfolios. We employ for the first time a stochastic dominance efficiency (SDE) approach to construct optimal portfolios with and without commodities and we evaluate their comparative performance. SDE circumvents the...

This study outlines a systemic review of the social and economic transformations that have been inducing the business to reconsider its traditional strategies and innovate to become sustainable. In doing so, the study adopts an original approach, focusing on the evolution in the socio-economic...

This paper studies how the investors’ attitude towards earnings surprises affects the managers’ incentives to manipulate earnings in an intertemporal context, where the consensus forecast of the analysts is not exogenously given but determined by the strategic interaction between the analysts...

Pricing strategies may include the advertising of meeting-the-competition clauses (MCCs). We show in a specific spatial model scenario with differently informed consumers that MCCs primarily serve as a device to facilitate collusion instead of allowing for price discrimination between these...

Newspapers have experienced declining circulation figures and declining advertising revenues for several years. In particular, declining advertising figures put a threat on newspapers - this is especially severe in the US where 73% of their revenues are generated through advertising. On the...